Does anyone know where I should post questions regarding linux commands such as grep, find, top, ...? Should they go on Stack Overflow or Server Fault?
Generic commands ls, grep, etc: superuser.com
Network admin commands arp, netstat, etc: serverfault.com
full on scripting awk, sed, etc: stackoverflow.com
I pretty much agree with the split EBGreen has suggested, however, since there's a pretty big overlap between all the sites on this I would suggest that questions are left on whichever site they originate unless they're very out of place.